Uni Filter NU-8510ST Multi-Stage Competition Air Filter for Polaris Youth ATVs

The Uni Filter NU-8510ST is a multi-stage competition air filter designed specifically for Polaris youth ATVs including the Outlaw 50 and Predator 50 models. This premium foam filter provides superior filtration and airflow compared to disposable paper filters, making it ideal for off-road riding conditions.

Multi-Stage Filtration Technology:

Uni Filter's innovative two-stage design features an outer coarse foam layer and an inner fine foam layer that work together to maximize dirt-trapping capabilities while maintaining optimal airflow. The outer layer can be left dry for maximum airflow in normal conditions, or oiled for wet and muddy environments. This dual-layer system allows the filter to capture more dirt throughout its entire thickness rather than just on the surface, extending service intervals and preventing premature air restriction.

Key Features:

• Constructed from premium open-cell polyurethane foam for superior filtration
• Two-stage design provides maximum airflow and extended service life
• Reusable and washable - saves money over disposable filters
• Pre-oiled and ready to install right out of the package
• Precision-fit design ensures proper sealing to prevent dirt bypass
• Red foam color for easy visual inspection

How Foam Filters Work:

The open-cell polyurethane foam is treated with specially formulated filter oil that creates a sticky barrier on the foam's web-like cell structure. As air passes through, dirt particles become trapped in the oil-coated strands. Unlike paper filters that load on the surface, foam filters utilize their full thickness for dirt storage, maintaining consistent airflow for approximately 80% of the filter's service life. When dirty, simply wash with filter cleaner, re-oil with Uni Filter oil, and reinstall.

Maintenance:

Regular cleaning and re-oiling ensures optimal performance and engine protection. Always use quality foam filter oil and cleaner designed specifically for foam air filters. Inspect regularly in dusty conditions and clean as needed.